Bailly
Πυθιο·νίκης, ου (ὁ) [ῡῑ] vainqueur aux jeux Pythiques, PD.
P. 9, 1 ; HDT.
8, 47.
➳ Dor. Πυθιονίκας [ᾱ] PD. l. c.
Étym. v. Πυθιονίκη.
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LSJ
ου, Dor. Πυθιονίκας, α, ὁ, conqueror in the Pythian games, Pi. P. 9.1, Hdt. 8.47, PLond. 3.1178.67 (ii AD), Hld. 5.19; — fem. Πυθιονίκη, ἡ, pr. n. of a ἑταίρα, afterwards deified as Π. Ἀφροδίτη, Python 1.8, Antiph. 26.20, Timocl. 17, Philem. 16, Theopomp.Hist. 244, 245, Paus. 1.37.2; called Πυθονίκη in D.S. 17.108, Plu. Phoc. 22 (so, of another woman, IG 3.3823). Πυθιονίκη = Pythian victory, Hld. 5.19.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)